Base | Representation |
---|---|
bin | 11011001001001… |
… | …01101100010101 |
3 | 120212110010100021 |
4 | 31210211230111 |
5 | 431242223011 |
6 | 34332145141 |
7 | 5433243634 |
oct | 1544455425 |
9 | 525403307 |
10 | 227695381 |
11 | 107589a01 |
12 | 643081b1 |
13 | 382332c4 |
14 | 2235151b |
15 | 14eca471 |
hex | d925b15 |
227695381 has 2 divisors, whose sum is σ = 227695382. Its totient is φ = 227695380.
The previous prime is 227695361. The next prime is 227695409. The reversal of 227695381 is 183596722.
227695381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 174900625 + 52794756 = 13225^2 + 7266^2 .
It is a cyclic number.
It is not a de Polignac number, because 227695381 - 27 = 227695253 is a prime.
It is a super-2 number, since 2×2276953812 = 103690373057470322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (227695361) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113847690 + 113847691.
It is an arithmetic number, because the mean of its divisors is an integer number (113847691).
Almost surely, 2227695381 is an apocalyptic number.
It is an amenable number.
227695381 is a deficient number, since it is larger than the sum of its proper divisors (1).
227695381 is an equidigital number, since it uses as much as digits as its factorization.
227695381 is an evil number, because the sum of its binary digits is even.
The product of its digits is 181440, while the sum is 43.
The square root of 227695381 is about 15089.5785560764. The cubic root of 227695381 is about 610.6392841053.
The spelling of 227695381 in words is "two hundred twenty-seven million, six hundred ninety-five thousand, three hundred eighty-one".
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